<PRE><B>Question 827381</B>
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x = small
y = medium
z = large
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y = 3x
z = y - 140
1.5x + 2y + 2.5z = 1360
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put the system of linear equations into standard form:
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3x - y = 0
y - z = 140
1.5x + 2y + 2.5z = 1360
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copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = small = 114
y = medium = 342
z = large = 202
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system matrix
3 -1 0
0 1 -1
1.5 2 2.5
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inverse of system matrix
0.3 0.16666667 0.066666667
-0.1 0.5 0.2
-0.1 -0.5 0.2
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determinant of system matrix = 15
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php</PRE>